Screw closure with retaining means for containers



A. NADAR arch 4,1952

SCREW CLOSURE WITH RETAINING MEANS FOR CONTAINERS 5 Sheets-Sheet 1 Filed June 2, 1948 IIIII 1NVENTOR. )7 [635101 (270 Va dam Filed June 2, 1948 March 4, 1952 A. NADA! SCREW CLOSURE WITH RETAINING MEANS FOR CONTAINERS 5 Sheets-Sheet 2 Fwy 10;

I l 1 I I I J? 655mm MEMO March 4, 1952 ANADA, 2,588,275

SCREW CLOSURE WITH RETAINING MEANS FOR CONTAINERS Filed June 2, 1948 5 Sheefcs-Sheet 3 INVENTOR: J7 Zessa ndm Nada Patented Mar. 4, 1952 SCREW CLOSURE WITH RETAINING MEANS FOR- CONTAINERS,

Alessandro Nadai, Rome, Italy, assignor of twothirds to Rodolfo Abel and Pietro Abel (Abeles),

Rome, Italy Application June 2, 1948, Serial No. 30,626

' In Italy October 4, 1947 4 Claims. 1

Containers, such as tubes, bottles, phials and the like, have the disadvantage of being provided with a closing member which, when the contents are to be made use of, has to be removed and taken care of separately, thus running the risk of being dropped and, consequently, getting broken as well as of being mislaid.

The attempts made to obviate these inconven-w iences have not allowed so far to achieve the results aimed at inasmuch as they have proved to be too expensive owing to the number of parts necessary. and/ or owing to the difliculty of fitting them together, or because of the impossibility of their securing a perfect air-tight closure to avoid of air entering the containers and of the stuff contained in the. containers being, consequently, hardened or altered, or even because such parts are lacking from an aesthetical and generally from a practical point ofview.

The object of the present invention is to provide a closing device for containers of various kinds, which, while leaving unalteredthe known system of closing the containers by screwing the plug on to their mouthpiece, by means of suitable rigid connecting members causes the plug, by allowing the same to be freely suspended from the neck of the container, to perform a rotarytranslatory motion according to the axis of the container and an overturning motion around an axis orthogonal with respect to the neck of the container. According to the invention, such movements and such a connection are achieved by means of one or more rigid arms, which the lid.- is provided with and which engage either directlyor indirectly the neck of the container.

The invention is illustrated, by way of example only and not in a restrictive manner, in the annexed drawing, in which:

- Fig. 1 is a perspective view of an open tube;

Fig. 2 isa perspective view, turned by 90 with respect to Fig. 1, of a tube in the closure position;

Fig. 3 is a perspective view of a closed tube;

Fig. 4 is a perspective view of a tube having only the ring applied on the neck;

Fig. 5 is a perspective view of a first embodiment of a tube without the closing members;

Fig. 6 is a section according to a vertical plane of a tube, representing a first'embodiment;

Fig 7- is a vertical section of the ring;

Fig. 8, is a vertical section of the lid;

Fig. 9*. is a vertical section of a tube, according to a second embodiment of the invention;

F ga side Vi w o a ube out he desire members. aid second emb ment;

Figs. 11 and 12 are a perspective and a sectional view, respectively, of the ring;

Fig. 13 is a sectional view of a third embodi ment of the invention;

Figs. 14 and 15 are two sections, turned by 90 with respect to each other, of the ring according to said third embodiment;

Fig. 16 is a perspective view of a further em.- bodiment of the invention;

Fig. 17 shows in section the lid according to the embodiment illustrated in Fig. 16;

Figs. 18'and 19 show a side view and a cross section, respectively, of the ring relating to the embodiment represented in Fig. 16;

Fig. 20 is a side view of a tube according to another embodiment of the invention, and

Fig. 21 is a section of the lid, showing a detail of the projecting part of the arms.

The main feature of the invention consists in performing the closure by means of a lid l provided with arms 2 capable of keeping secured lid l to the neck 3 of the tube either indirectly (Figs. 1 to 19) or directly (Fig. 20). The closure of the container is warranted by screwing the lid I on to the threaded portion 4 of the neck of the container, thus securing a perfect tightness of the latter.

The lid l at the top is shaped in the same manner as the usual screw-threaded lids and it is, moreover, provided with external projections 5 or another analogous system capable of assisting the engagement of same during the screwing on and screwing off operations, as well as with an internal thread 6 to tighten the lid on the mouthpiece of the container.

At the bottom, as already stated and with particular reference to Figs. 1 to 15, it is provided with two prolongations or arms 2', by means of which the lid grips. a collar 9, thus engaging lugs I provided at the arms 2 and which are turned inside within corresponding slots 8 of the said,

ring 9 which is housed on the smoothportion of neck 3: of the container. The slots 8 extend from the base of ring 9 as far as to nearly reach the top of the ring so as to impart ring 9 a certain elasticity also in relation to the material used for its construction, which elasticity, in the example shown in Figs. 4 to 8, allows of the ring being blocked on theneck of the container by. the engagement. of flanges l0, provided at the base, of the ring, with the groove H provided for at the base of the neck, of the container, thus permitting the ring to performrotary movements. and simultaneously preventing it from, perform ing translatory: movements.

When carrying out the assembly, it will be sufficient to put on the ring, that is to cause it to enter in such a way that the flange ll] of the ring engages with groove II and then, upon exerting a lateral pressure, to cause lugs 1 of arms 2 of the lid l to enter the grooves 3 of ring 9.

By this extremely simple operation the closure of the container is accomplished and then, upon having shifted lid I in the direction of the mouthpiece of the container, an airtight closure is secured by merely screwing on the lid.

Similarly, in the embodiment illustrated by way of example in Figs. 9, 10, 11 and 12, a ring 9 is provided having slots 8 which are intended to cause said ring to engage with lugs 1 of lid I. Furthermore, ring 9 carries a pin I2 which, by Sliding along the thread 4 and by passing through a vertical groove i3 provided on the last threaded portion of said thread, reaches groove l4 provided beneath thread 4 on the neck of the container, thus securing ring 9 to the container.

This embodiment is particularly suitable for manufacturing the closing device with rigid material.

As already stated, in Figs. 13, 14 and 15 is represented a further embodiment. According to such embodiment, ring 9 is replaced by a sleeve l provided with diametrically opposite holes 16 turned towards the outside and capable of engaging with lugs 'l of arms 2, as well as with a cut I! which, owing to the elasticity it imparts said ring, permits ofthe sleeve being duly positioned, thus preventing said sleeve from leaving the neck of the container.

In the foregoing have been disclosed embodiments of the invention with the lid being provided with two diametrically opposite arms 2. Figs. 16, 17, 18 and 19 illustrate an embodiment of the invention, in which lid I through a ring 18 is connected to the container by means of a sole arm l9.

To carry into effect this embodiment, there is provided arm [9 terminating with a ball 20 capable of engaging with groove 2! having such a shape as to fit to said ball so as to permit the rotation of arm l9 and, consequently, of lid l in a direction which is preferred or sought for. The engagement of ring i8 with the appropriate groove provided on the neck of the container takes place by means of pin 23 in the manner disclosed in connection with the embodiment according to Figs. 9 to 12.

On the other hand, with the embodiment according to Fig. 20, a closing device is obtained having the same features, as far as working safety, structural simplicity and strength are concerned, as the previously illustrated closing devices, although the ring or sleeve, which has so far been used, is done away with. This embodiment is obtained by providing on the smooth portion of the neck of the container two helical diametrically opposite grooves 22 so as to permit arms 2, which are carried by the lid, to perform simultaneously with the rotary motion, due to r the sliding movement or the lid, also a rotary motion corresponding to the slope of thread 4.

Fig, 21 illustrates in detail the lugs provided for on the arms in the embodiments according to Figs. 1 to 15 and 20. These lugs l have a height which is greater than their width and, consequently, greater than the width of the housing in which they are engaged, so that, during the transversal overturning motion of the lid, said lugs 1, by hearing against the walls of the respective housings, act in such a way as to secure the overturning motion for said lid.

4 What I claim is: 1. In combination with a container having a threaded neck, a closure comprising a lid having a thread meshing with the neck threads, a collar 5 rotatable on the container, said collar being incapable of moving along the container axis, a pair of spaced parallel arms rigidly connected to the lid and extending longitudinally from diametrically opposed points thereof, and a pivotal connection between the arms and the collar enabling pivotal movement of the lid around an axis transverse to the neck axis when the lid is unscrewed, said pivotal connection comprising a lug extending inwardly from each arm, a pair of slots on the collar accommodating the lugs, said slots being of such a length as to enable the lid to be moved an extent at least equal to the threaded portion so that the lid may be screwed and unscrewed.

2. A closure as claimed in claim 1, wherein the dimension of the lugs longitudinally of the lid is greater than their dimension at right angles thereto and the width of the slot, whereby the lugs are gripped by the Walls of the slot upon rotation of the lid about said transverse axis but slide freely therein when not so rotated.

3. In combination with a container having a ihreaded neck, a closure comprising a lid having a thread meshing with the neck threads, said lid being secured to said neck and freely. suspended therefrom by engagement with a pair of spaced parallel arms, said arms being rigidly connected with said lid and extending from diametrically opposed points thereof, and engaged 'by spaced helical grooves provided in said neck, said arms and said lid being adapted to perform a rotary translatory motion during screwing on and 01f of the lid and to perform a rotary motion according to an axis orthogonal with respect to the mouth of the container when the lid is completely unscrewed, the unscrewed lid being held immovable until screwed upon the container.

4. In combination with a container having a threaded neck, a closure comprising a lid having a thread meshing with the neck threads, said lid being secured to said neck and freely suspended therefrom by engagement with a pair of spaced parallel arms, said arms being rigidly connected to the lid and extending longitudinally from dia- 5O ing inwardly from each arm, and a pair of grooves-on said neck accommodating said lugs, said lugs having a length greater than the width of said grooves, said arms and said lid being REFERENCES omen The following references .are of record in the file of this patent:

UNITED STATES PATEivTs Number Name Date 242,331 Kimball May 31, 1881 315,797 Kent Apr. 14, 1885 834,679 Newton et a1 Oct. 30, 1906 2,052,260 Tomita Aug. 23, 1936 2,351,150 Sanford June 13, 1944 2,355,377 Hustad Aug. 8, 1944' metrically opposed points thereof, a lug extend 

